Model.defaultremeshsurf

Model.defaultremeshsurf(collection, elem_size, elem_type, elem_type_2, previous_settings, comp_mode, size_control, skew_control, mesh_type, min_size, max_size, chordal_dev, max_angle)

Re-meshes a selection of surfaces using saved or default parameters and various options, and deletes any elements already meshed on those surfaces.

Parameters:

• collection (Collection) – The collection containing the surface entities to re-mesh.

• elem_size (double) – The default element size used to calculate element densities along edges (when necessary).

• elem_type (int) –

  Flag indicating the elements generated for mapped meshing algorithms. Valid values are:

  0 - trias

  1 - quads

  2 - mixed

  3 - right trias

  4 - quads only

• elem_type_2 (int) –

  Flag indicating the elements generated for free meshing algorithms. Valid values are:

  0 - trias

  1 - quads

  2 - mixed

  3 - right trias

  4 - quads only

• previous_settings (int) –

  Flag indicating whether to break, keep or redo connectivity between neighboring surfaces. Valid values are:

  0 - Keep previous settings and do not break connectivity between neighboring surfaces.

  1 - Break connectivity between neighboring surfaces.

  2 - Keep connectivity between neighboring surfaces.

  3 - Redo connectivity between neighboring surfaces by expanding surface selection by one layer of adjacent surfaces.

• comp_mode (int) –

  Parameter specifying how entities are organized into components. Valid options are:

  0 - Elements are created in the current component.

  1 - Elements are created in the same components as their parent surfaces.

• size_control (int) –

  Flag indicating whether to create uniformly sized elements. Valid options are:

  0 - Do not create uniformly sized elements.

  1 - Create uniformly sized elements.

• skew_control (int) –

  Flag indicating whether to create optimally shaped elements when using mapping algorithms. Valid options are:

  0 - Do not create optimally shaped elements.

  1 - Create optimally shaped elements.

• mesh_type (int) –

  Parameter specifying the meshing algorithm for edge/surface meshing. Valid options are:

  1 - Standard edge meshing.

  2 - Chordal deviation edge meshing.

  3 - Proximity based surface meshing.

  4 - Proximity and curvature based surface meshing.

  5 - Curvature based surfaced meshing.

  6 - Proximity and curvature based meshing with free edge deviation.

  7 - Curvature based surface meshing with free edge deviation.

  11 - Standard edge meshing with flow “align” control.

  12 - Chordal deviation edge meshing with flow “align” control.

  14 - Standard edge meshing with flow “align” and “size” control.

• min_size (double) – The minimum edge size for chordal deviation meshing. Ignored otherwise.

• max_size (double) – The maximum edge size for chordal deviation meshing. Ignored otherwise.

• chordal_dev (double) – The chordal deviation value for chordal deviation meshing. Ignored otherwise.

• max_angle (double) – The maximum angle (in degrees) between edges for chordal deviation meshing. Ignored otherwise.

Example

Re-meshing using quads using a default edge size of 1.0 for the surface with ID 3

import hm
import hm.entities as ent

model = hm.Model()

inp_col = hm.Collection(model, ent.Surface, [3])

model.defaultremeshsurf(
    collection=inp_col,
    elem_size=1.0,
    elem_type=1,
    elem_type_2=1,
    previous_settings=1,
    comp_mode=0,
    size_control=0,
    skew_control=0,
    mesh_type=1,
    min_size=0.0,
    max_size=0.0,
    chordal_dev=0.0,
    max_angle=0.0,
)

Re-meshing using mixed type elements for the size controlled mapping algorithm using tria transitions, trias for free mesh and chordal deviation edge meshing for surfaces 3, 5 and 6

import hm
import hm.entities as ent

model = hm.Model()

inp_col = hm.Collection(model, ent.Surface, [3, 5, 6])

model.defaultremeshsurf(
    collection=inp_col,
    elem_size=1.0,
    elem_type=1,
    elem_type_2=0,
    previous_settings=1,
    comp_mode=0,
    size_control=1,
    skew_control=0,
    mesh_type=1,
    min_size=0.5,
    max_size=30.0,
    chordal_dev=0.1,
    max_angle=15.0,
)